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irina1246 [14]
2 years ago
6

Due Tomorrow at 4 help me

Mathematics
2 answers:
RideAnS [48]2 years ago
6 0

Answer:

question 1: option C (1)

question 2: option A (3)

Step-by-step explanation:

hope it helps!

Alik [6]2 years ago
4 0

Answer:

1- 1

2-3

3- -1/8

Step-by-step explanation:

I used a calculator :/

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Answer:

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Step-by-step explanation:

Given -

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P(77.6< \overline{X}<   83.2) = P(\frac{77.6- 79}{\frac{18}{\sqrt{81}}})< P(\frac{\overline{X} - \nu }{\frac{\sigma }{\sqrt{n}}}\leq  \frac{83.2- 79}{\frac{18}{\sqrt{81}}})

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                                  = 0.9821 - .2420

                                   = 0.7401

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